Yeah, getting it delivered is expensive, plus no doubt they will have included the price for them to get off their arses and get it off the the car for you. You may aswell spend the money you are saving on petrol and have a nice drive down there, rocker cover is simplest thing in the world to get off. Worst thing that could happen is you get your hands dirty, but you get more of a sense of acheivment I guess if you do all the work yourself 
Have you got a new rocker gasket yet?
I'm off to the scrappy now actually...bored of doing work, gonna try and find a rear rubbing strip and clip to fix my door locks.
